Guofei Dai

Field-Scale Suppression of Cyanobacterial Blooms by Cationic Polymer-Modified Local Soil: Selective Inactivation Mechanism and Ecological Responses

Ningyan Peng, Yuanyuan Fang, Ping Yang, Jin Liu et autres

Harmful cyanobacterial blooms require control strategies that suppress bloom-forming taxa while limiting effects on non-target primary producers and toxin-related risks. We developed a cationic polyquaternium (P126)-engineered local red-soil composite and evaluated its electrokinetic properties, taxon-dependent photophysiological effects, activity against colonial Microcystis, robustness …

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Sustainable capture and photocatalytic degradation of organic pollutants by high-swelling cyclodextrin polymer loaded with TiO2 nanoparticles

Kai Zhang, Zhaoxin Zhang, Ningning Cao, Linji Li et autres

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Two new non-chlorophyll f-producing species in the Kovacikia genus (Leptolyngbyaceae, Leptolyngbyales) from the Poyang Lake Basin, China

Liqin Shen, Guofei Dai, Le Ying, Sheng Lai et autres

For the filamentous cyanobacteria, the order Leptolyngbyales is the larger and obviously polyphyletic group, although its members are morphologically similar. In this study, three Leptolyngbya -like strains were isolated from the soil of three different habitats in the Poyang Lake Basin, China—dark …

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Rapid removal of various recalcitrant pollutants from water by a pH-responsive high-swelling cyclodextrin polymer

Kai Zhang, Yongli Shi, Zhaoxin Zhang, Linji Li et autres

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Magnetic high-swelling cyclodextrin polymer adsorbent for rapid removal of pollutants and efficient recovery from water

Kai Zhang, Yongli Shi, Linji Li, Ningyan Peng et autres

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Differential photosynthetic and metabolic susceptibility of Microcystis aeruginosa and Raphidocelis subcapitata to environmentally relevant levels of Diuron

Jun Sha, Yunlu Jia, Jin Ma, Licheng Huang et autres

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Inhibitory mechanism of Macleaya cordata crude extracts on freshwater cyanobacterium Microcystis aeruginosa

Jin Ma, Fang Bai, Guofei Dai, Licheng Huang et autres

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Facile synthesis of high-swelling cyclodextrin polymer for sustainable water purification

Kai Zhang, Yu Dai, Rui Liu, Yongli Shi et autres

Porous materials are widely used in the adsorption field to sequester pollutants to address the global sustainable water security and water scarcity concerns. However, there are still challenges that limit their industrial application, especially the required rational design and construction of porous …

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Unveiling the susceptibility mechanism of Microcystis to consecutive sub-lethal oxidative stress—Enhancing oxidation technology for cyanobacterial bloom control

Fang Bai, Jie Li, Tianli Li, Jun Sha et autres

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Evaluating microcystinase A-based approach on microcystins degradation during harvested cyanobacterial blooms

Siyu Yang, Jun Zuo, Hans‐Peter Grossart, Guofei Dai et autres

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Influence of wind field on surface cyanobacteria density of Lake Poyang in wet season, China

Fang Yuan Hu, Wen Chunyun, Hui Wen, Jiang Wu et autres

目前,在风场对蓝藻的影响研究方面,国内针对太湖、滇池、巢湖等浅水湖泊的研究较多,针对鄱阳湖的研究则多集中于蓝藻群落特征及其与营养盐之间的关系。近年来,作为长江流域重要的通江湖泊,处于轻度富营养化状态的鄱阳湖水体蓝藻水华在局部库湾和部分水域出现,风场如何影响鄱阳湖表层蓝藻密度是一个值得探讨的问题。2019-2021年,在鄱阳湖布设13~49个采样点,于平水期、丰水期和枯水期现场采集各个点位表层水样、藻类、风场和流场数据,分析风场对鄱阳湖丰水期表层蓝藻密度的影响。结果表明,2019-2021年鄱阳湖丰水期风速与表层蓝藻密度呈显著正相关性,风场对水体的充分混合及驱动水体形成的风生流是促进蓝藻生长的原因之一。在流速较高(>0.05 m/s)的区域,无论风速高于还是低于临界风速(3~4 m/s),鄱阳湖表层蓝藻密度的空间分布受流场的影响更大;在流速较低(<0.05 m/s)的区域,风速在临界风速以下时,鄱阳湖表层蓝藻密度的空间分布受风场影响更大。2019-2021年鄱阳湖丰水期蓝藻密度超过水华暴发的阈值,但在高风速高流速的共同作用下未能发生大范围的蓝藻水华,仅能在风速适宜(<3~4 m/s)、流速较低(<0.05 m/s)的内湾、尾闾区等区域发生小面积的蓝藻水华。鄱阳湖丰水期水体处于长江顶托的低流速且微风条件下时,发生大面积蓝藻水华的概率可能会明显上升。;In terms of the study of influence of wind field on cyanobacteria, presently there are many studies on shallow lakes such as Lake Taihu, Lake Dianchi and Lake Chaohu in China, while the research on Lake Poyang …

Removal of Microcystin-LR in lake water sample by hydrophilic mesoporous silica composites under high-throughput MALDI-TOF MS detection platform

Wantong Zhang, Zixing Xu, Guofei Dai, Zhijian Li et autres

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